How `skip-framework-build` option of `corber build` works?

[HarshRohila]

I tried running ember build which stores build in dist folder and then ran corber build with skip-framework-build option, it skips the ember build, but its not picking up the latest ember build files from dist folder
Does it need copying dist files in corber/cordova/www folder before running corber build?

[HarshRohila]

found that it does need copying and both flags, --skip-framework-build and --add-cordova-js are required